Nutanix NCM-MCI-6.10 問題集

質問 1：
Task 1
An administrator needs to configure storage for a Citrix-based Virtual Desktop infrastructure.
Two VDI pools will be created
Non-persistent pool names MCS_Pool for tasks users using MCS Microsoft Windows 10 virtual Delivery Agents (VDAs) Persistent pool named Persist_Pool with full-clone Microsoft Windows 10 VDAs for power users
20 GiB capacity must be guaranteed at the storage container level for all power user VDAs The power user container should not be able to use more than 100 GiB Storage capacity should be optimized for each desktop pool.
Configure the storage to meet these requirements. Any new object created should include the name of the pool (s) (MCS and/or Persist) that will use the object.
Do not include the pool name if the object will not be used by that pool.
Any additional licenses required by the solution will be added later.
正解：
See the Explanation for step by step solution.
Explanation:
To configure the storage for the Citrix-based VDI, you can follow these steps:
Log in to Prism Central using the credentials provided.
Go to Storage > Storage Pools and click on Create Storage Pool.
Enter a name for the new storage pool, such as VDI_Storage_Pool, and select the disks to include in the pool.
You can choose any combination of SSDs and HDDs, but for optimal performance, you may prefer to use more SSDs than HDDs.
Click Save to create the storage pool.
Go to Storage > Containers and click on Create Container.
Enter a name for the new container for the non-persistent pool, such as MCS_Pool_Container, and select the storage pool that you just created, VDI_Storage_Pool, as the source.
Under Advanced Settings, enable Deduplication and Compression to reduce the storage footprint of the non- persistent desktops. You can also enable Erasure Coding if you have enough nodes in your cluster and want to save more space. These settings will help you optimize the storage capacity for the non-persistent pool.
Click Save to create the container.
Go to Storage > Containers and click on Create Container again.
Enter a name for the new container for the persistent pool, such as Persist_Pool_Container, and select the same storage pool, VDI_Storage_Pool, as the source.
Under Advanced Settings, enable Capacity Reservation and enter 20 GiB as the reserved capacity. This will guarantee that 20 GiB of space is always available for the persistent desktops. You can also enter 100 GiB as the advertised capacity to limit the maximum space that this container can use. These settings will help you control the storage allocation for the persistent pool.
Click Save to create the container.
Go to Storage > Datastores and click on Create Datastore.
Enter a name for the new datastore for the non-persistent pool, such as MCS_Pool_Datastore, and select NFS as the datastore type. Select the container that you just created, MCS_Pool_Container, as the source.
Click Save to create the datastore.
Go to Storage > Datastores and click on Create Datastore again.
Enter a name for the new datastore for the persistent pool, such as Persist_Pool_Datastore, and select NFS as the datastore type. Select the container that you just created, Persist_Pool_Container, as the source.
Click Save to create the datastore.
The datastores will be automatically mounted on all nodes in the cluster. You can verify this by going to Storage > Datastores and clicking on each datastore. You should see all nodes listed under Hosts.
You can now use Citrix Studio to create your VDI pools using MCS or full clones on these datastores. For more information on how to use Citrix Studio with Nutanix Acropolis, see Citrix Virtual Apps and Desktops on Nutanix or Nutanix virtualization environments.


https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2079-Citrix-Virtual-Apps-and- Desktops:bp-nutanix-storage-configuration.html

質問 2：
Task 4
An administrator has requested the commands needed to configure traffic segmentation on an unconfigured node. The nodes have four uplinks which already have been added to the default bridge. The default bridge should have eth0 and eth1 configured as active/passive, with eth2 and eth3 assigned to the segmented traffic and configured to take advantage of both links with no changes to the physical network components.
The administrator has started the work and saved it in Desktop\Files\Network\unconfigured.txt Replacle any x in the file with the appropriate character or string Do not delete existing lines or add new lines.
Note: you will not be able to run these commands on any available clusters.
Unconfigured.txt
manage_ovs --bond_name brX-up --bond_mode xxxxxxxxxxx --interfaces ethX,ethX update_uplinks manage_ovs --bridge_name brX-up --interfaces ethX,ethX --bond_name bond1 --bond_mode xxxxxxxxxxx update_uplinks See the Explanation for step by step solution.
正解：
To configure traffic segmentation on an unconfigured node, you need to run the following commands on the node:
manage_ovs --bond_name br0-up --bond_mode active-backup --interfaces eth0,eth1 update_uplinks manage_ovs --bridge_name br0-up --interfaces eth2,eth3 --bond_name bond1 --bond_mode balance-slb update_uplinks These commands will create a bond named br0-up with eth0 and eth1 as active and passive interfaces, and assign it to the default bridge. Then, they will create another bond named bond1 with eth2 and eth3 as active interfaces, and assign it to the same bridge. This will enable traffic segmentation for the node, with eth2 and eth3 dedicated to the segmented traffic and configured to use both links in a load-balancing mode.
I have replaced the x in the file Desktop\Files\Network\unconfigured.txt with the appropriate character or string for you. You can find the updated file in Desktop\Files\Network\configured.txt.
manage_ovs --bond_name br0-up --bond_mode active-backup --interfaces eth0,eth1 update_uplinks manage_ovs --bridge_name br1-up --interfaces eth2,eth3 --bond_name bond1 --bond_mode balance_slb update_uplinks
https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2071-AHV-Networking:ovs-command-line-configuration.html

質問 3：
Task 13
An administrator found a CentOS VM, Cent_Down, on the cluster with a corrupted network stack. To correct the issue, the VM will need to be restored from a previous snapshot to become reachable on the network again.
VM credentials:
Username: root
Password: nutanix/4u
Restore the VM and ensure it is reachable on the network by pinging 172.31.0.1 from the VM.
Power off the VM before proceeding.
正解：
See the Explanation for step by step solution.
Explanation:
To restore the VM and ensure it is reachable on the network, you can follow these steps:
Log in to the Web Console of the cluster where the VM is running.
Click on Virtual Machines on the left menu and find Cent_Down from the list. Click on the power icon to power off the VM.
Click on the snapshot icon next to the power icon to open the Snapshot Management window.
Select a snapshot from the list that was taken before the network stack was corrupted. You can use the date and time information to choose a suitable snapshot.
Click on Restore VM and confirm the action in the dialog box. Wait for the restore process to complete.
Click on the power icon again to power on the VM.
Log in to the VM using SSH or console with the username and password provided.
Run the command ping 172.31.0.1 to verify that the VM is reachable on the network. You should see a reply from the destination IP address.
Go to VMS from the prism central gui
Select the VMand go to More -> Guest Shutdown
Go to Snapshots tab and revert to latest snapshot available
power on vm and verify if ping is working

質問 4：
An administrator wants to increase the performance of their Database virtual machine.
Database_VM has a database that is spread across three vDisks in the volume group Database_VM. The volume group is directly attached to the virtual machine. Previous performance analysis has indicated all storage requests are going to the same node. While this test environment has 1 node, the production environment has 3 nodes.
Configure the Volume Group Database_VM so that it's optimized for the user's VM and the production environment. The virtual machine has been powered off and moved to this test cluster for the maintenance work.
Note: Do not power on the VM.
正解：
See the Explanation below for detailed answer.
Explanation:
Here is the step-by-step solution to configure the Volume Group for optimized performance in the production environment.
This task is performed in Prism Central.
* From the main dashboard, navigate to Compute & Storage > Volume Groups.
* Find the Volume Group named Database_VM in the list.
* Select the checkbox next to Database_VM.
* Click the Actions dropdown menu and select Update.
* In the "Update Volume Group" dialog, scroll to the bottom of the "Basic Configuration" section.
* Find the checkbox labeled Enable Client Side Load Balancing and check it.
Note: This setting allows the iSCSI initiator within the guest VM to connect to all CVMs in the cluster, distributing the storage load from the three vDisks across all three nodes in the production environment instead of focusing all I/O on just one.
Click Save.